Jose Aldo defeated Mike Brown by TKO to win the WEC featherweight championship Wednesday in the main event of WEC 44 in Las Vegas.

Aldo finished Brown on the ground with a barrage of punches at the official time of one minute, 20 seconds into the second round.

"Mike was really strong," said former UFC heavyweight Pedro Rizzo, acting as translator for Aldo. "He respected him a lot in the beginning of the fight and had to wait for the right moment to finish the fight. So when he found the space, he threw all the punches."

Aldo ended Brown's streak of two successful title defenses with his explosive striking, forcing Brown to attempt to bring the fight to the ground. Aldo defended Brown and when Brown missed on a huge hook, Aldo brought Brown to the ground and secured full mount. Brown gave up his back and Aldo locked in both hooks and punched his way to call for the referee stoppage.

"He had a great night," Brown said. "He was landing the shots and I wasn't. That's how the game is."

Aldo's TKO earned him a $10,000 bonus for Knockout of the Night and improved his record to 16-1, with all six of his WEC wins by TKO. Meanwhile, Brown fell to 22-5, suffering his first loss in four years.

• Jose Aldo def. Mike Brown via TKO (punches) -- R2, 1:20 • Manny Gamburyan def. Leonard Garcia via unanimous decision • Karen Darabedyan def. "Razor" Rob McCullough via split decision • Shane Roller def. Danny Castillo via submission (rear-naked choke) -- R3, 3:32 • Kamal Shalorus def. Will Kerr via TKO (punches) -- R1, 1:26 • LC Davis def. Diego Nunes via unanimous decision • Cub Swanson def. John Franchi via submission (guillotine) -- R3, 4:50 • Antonio Banuelos def. Kenji Osawa via unanimous decision • Ricardo Lamas def. James Krause via unanimous decision

Check out FanHouse for more MMA news, interviews and video.

SI Apps
We've Got Apps Too
Get expert analysis, unrivaled access, and the award-winning storytelling only SI can provide - from Peter King, Tom Verducci, Lee Jenkins, Seth Davis, and more - delivered straight to you, along with up-to-the-minute news and live scores.